Package org.infinispan.commons.util

Class ConcatIterator<E>

java.lang.Object
org.infinispan.commons.util.AbstractIterator<E>
org.infinispan.commons.util.ConcatIterator<E>
All Implemented Interfaces:
AutoCloseable, Iterator<E>, CloseableIterator<E>
public class ConcatIterator<E> extends AbstractIterator<E> implements CloseableIterator<E>
Iterator that concatenates a bunch of iterables into 1 big iterator. Each iterable is retrieved lazily as requested. Note that if any of the produced iterators from the iterable implement CloseableIterator they will be closed when iterated upon fully or the last used iterator will be close when this iterator this closed.

Removal is implemented and will invoke remove on the last used iterator

Since:
9.3
Author:
wburns

  • Constructor Details

    • ConcatIterator

      public ConcatIterator(Iterable<? extends Iterable<E>> iterableIterables)

  • Method Details

    • getNext

      protected E getNext()
      Description copied from class: AbstractIterator
      Method to implement to provide an iterator implementation. When this method returns null, the iterator is complete.
      Specified by:
      getNext in class AbstractIterator<E>
      Returns:
      the next value for the iterator to return or null for it to be complete.

    • close

      public void close()
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface CloseableIterator<E>

    • remove

      public void remove()
      Specified by:
      remove in interface Iterator<E>